Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;
import java.awt.event.ActionEvent;
import java.awt.event.KeyEvent;

import javax.swing.AbstractAction;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.KeyStroke;

public class Main {
    void initUI() {
        GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
        int i = 1;
        for (GraphicsDevice gd : ge.getScreenDevices()) {
            JFrame frame = new JFrame();
            frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            frame.add(createLabel(String.valueOf(i)));
            frame.getRootPane().getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW)
                    .put(KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0), "exit");
            frame.getRootPane().getActionMap().put("exit", new AbstractAction() {
                @Override
                public void actionPerformed(ActionEvent e) {
                    System.exit(0);
                }
            });
            frame.setLocation(gd.getDefaultConfiguration().getBounds().getLocation());
            frame.setUndecorated(true);
            frame.setExtendedState(frame.getExtendedState() | JFrame.MAXIMIZED_BOTH);
            frame.setVisible(true);
            gd.setFullScreenWindow(frame);
            i++;
        }
    }

    private JLabel createLabel(String label) {
        JLabel jLabel = new JLabel(label);
        jLabel.setHorizontalAlignment(JLabel.CENTER);
        jLabel.setFont(jLabel.getFont().deriveFont(48.0f));
        jLabel.setFocusable(true);
        return jLabel;
    }

    public static void main(String[] args) {
        new Main().initUI();
    }
}